<!--********************************************************************
* Copyright© 2000 - 2025 SuperMap Software Co.Ltd. All rights reserved.
*********************************************************************-->
<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title data-i18n="resources.title_mapQueryByDistance"></title>
    <style>
        #toolbar {
          position: absolute;
          top: 50px;
          right: 10px;
          width: 240px;
          text-align: center;
          z-index: 1000;
          border-radius: 4px;
        }
    </style>
</head>
<body style=" margin: 0;overflow: hidden;background: #fff;width: 100%;height:100%;position: absolute;top: 0;">
<div id="toolbar" class="panel panel-primary">
  <div class='panel-heading'>
      <h5 class='panel-title text-center' data-i18n="resources.title_queryByDistance"></h5></div>
  <div class='panel-body content'>
      <div class='panel'>
        <div class='input-group'>
          <span class='input-group-addon' data-i18n="resources.text_queryDistance"></span>
          <input type="number" min="0" class="form-control" id="distance" placeholder="10" />
        </div>
      </div>
      <input type="button" class="btn btn-default" data-i18n="[value]resources.text_query" onclick="query()"/>&nbsp;
      <input type="button" class="btn btn-default" data-i18n="[value]resources.text_input_value_clear" onclick="clearFeatures()"/>
  </div>
</div>
<div id="map" style="margin:0 auto;width: 100%;height: 100%"></div>
<script type="text/javascript" include="bootstrap,widgets.alert" src="../js/include-web.js"></script>
<script type="text/javascript" src="../../dist/leaflet/include-leaflet.js"></script>
<script type="text/javascript">
    var host = window.isLocal ? window.server : "https://iserver.supermap.io";
    var map, circleMarker, resultLayer,
        url = host + "/iserver/services/map-world/rest/maps/World";
    map = L.map('map', {
        preferCanvas: true,
        crs: L.CRS.EPSG4326,
        center: [20, 100],
        maxZoom: 18,
        zoom: 3
    });
    new L.supermap.TiledMapLayer(url).addTo(map);
    circleMarker = L.circleMarker([30, 104], {color: 'red'}).addTo(map);

    function query() {
        clearFeatures();
        var distance = document.getElementById("distance").value || 10;
        if (distance <= 0) {
          return widgets.alert.showAlert(resources.text_queryDistanceLimit, false);
        }
        var param = new L.supermap.QueryByDistanceParameters({
            queryParams: {name: "Capitals@World.1"},
            distance: distance,
            geometry: circleMarker
        });
        new L.supermap
            .QueryService(url)
            .queryByDistance(param).then(function (serviceResult) {
                var result = serviceResult.result;
                resultLayer = L.geoJSON(result.recordsets[0].features).addTo(map);
            });
    }

    function clearFeatures() {
      resultLayer && map.removeLayer(resultLayer);
    }
</script>
</body>
</html>